- Add test_hooks_command_config.py: ExecuteCommand and
ConfigurationWillBeSaved hook tests
- Add test_hooks_user_channel.py: User lifecycle, channel/team,
and SAML login hook tests
- Add test_hooks_notifications.py: Reaction, notification, and
preferences hook tests
- Add test_hooks_system.py: System, WebSocket, cluster, shared
channels, and support data hook tests
- All 65 new tests verify correct hook semantics including:
- Fire-and-forget vs return-value hooks
- Rejection string semantics for UserWillLogIn
- Modify/reject semantics for notifications
- Error handling for all hook types
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
